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Discretization of nonlinear differential equation

Hi. I'm working on modeling a system which have resulted in a system of first order nonlinear differential equations s'...
1 comments posted 16yrs
posted by edward
1 comments posted 16yrs posted by edward

Terminology: "open-loop" vs. "closed-loop"

Hi All, The caption for Fig. 4 on the following page: http://www.wescottdesign.com/articles/FreqMeas/freq_meas.html is...
5 comments posted 16yrs
posted by bogus
5 comments posted 16yrs posted by bogus

Electronic gear box for Pfauter 320

Hello I am (was) repairing a Pfauter 320, coq wheel milling machine. It is from 1979, and the question is whether to co...
4 comments posted 16yrs
posted by sonnich
4 comments posted 16yrs posted by sonnich

PID autotuning - not working for heating application

Is there a control engineering expert here? I could us a bit of help on how to implement a PID autotune function for a...
30 comments posted 16yrs
posted by frankw_usenet
30 comments posted 16yrs posted by frankw_usenet

BLDC: Asymetrical Zero Cross detection

Hello, for detecting the Zero-cross of a sensorless BLDC I use a starpoint reproduction and give this Neutral-Point-sig...
5 comments posted 16yrs
posted by Wolfgangweinmann
5 comments posted 16yrs posted by Wolfgangweinmann

Idle Curiosity -- 4-20mA Signalling

Is there a (IEEE, EIA, whatever) specification for voltage levels in a 4-20mA signaling loop? Or is there some common w...
14 comments posted 16yrs
posted by tim
14 comments posted 16yrs posted by tim

Can an SLC 500 RIO a 1771 Rack & Cards.

As the subject says, can an Allen Bradley SLC 500 processor read/write to a PLC 5, 1771, rack and I/O modules? For my h...
7 comments posted 16yrs
posted by regor
7 comments posted 16yrs posted by regor

Best control breadboarding hardware

I'm looking around for the best control prototyping boards for simple & inexpensive control systems. Recently I helped...
3 comments posted 16yrs
posted by poogleway
3 comments posted 16yrs posted by poogleway

please help with SCADA

Dear all, I'm an engg student and I really need some help regarding SCADA systems and their implementation in Grid subs...
0 comments posted 16yrs
posted by technoshubhi
0 comments posted 16yrs posted by technoshubhi

dc motor control for a balancing platform (segway)

I have just bought an arduino microcontroller and as one of my first projekts I would like to make a small self balanci...
6 comments posted 16yrs
posted by nils.christian.bonnevie
6 comments posted 16yrs posted by nils.christian.bonnevie

Panel Graphics Create & Edit

I've been working on PanelView and trying to make some graphic screens. Are their any favorite programs for creating an...
0 comments posted 17yrs
posted by regor
0 comments posted 17yrs posted by regor

Simpler Than A Thermostat?

Suppose a feedback control system does not have any way to determine the [+/-] sign or magnitude of the error as in a t...
10 comments posted 17yrs
posted by BretCahill
10 comments posted 17yrs posted by BretCahill